adding with regrouping

What defines a multi-digit number?

• A number with only one digit.

• A number with more than one digit.

• Any number less than 9.

• A number that is a multiple of 10.

When setting up multi-digit addition, what is the most important rule for stacking the numbers?

• Place the larger number on top.

• Align the numbers to the left.

• Line up the number places directly over each other, starting with the ones place.

• Ensure all numbers have the same number of digits by adding leading zeros.

After stacking the numbers for multi-digit addition, which column should you always start adding first?

• The leftmost column.

• The hundreds place column.

• The ones place column.

• Any column, as long as you keep track of carries.

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What does "regrouping" mean in multi-digit addition?

• Rearranging the order of numbers being added.

• Carrying a digit from one column to the next column to the left when the sum of a column is a two-digit number.

• Subtracting a digit from one column and adding it to another.

• Rounding numbers to the nearest ten or hundred before adding.